PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/11-20:27:30
G01     309.8          30.9                8.0 +/-    1.69      13.8 +/-    1.69  0.070 / 0.160
G10     102.2          43.1               10.4 +/-    0.59      14.5 +/-    0.59  0.070 / 0.140
G11     286.3          28.0                8.4 +/-    1.21      15.3 +/-    1.21  0.090 / 0.130
G14     349.5          68.3                7.3 +/-    1.12       7.8 +/-    1.12  0.060 / 0.120
G18     115.4          15.4               11.0 +/-    1.25      27.0 +/-    1.25  0.050 / 0.050
G22     308.2          22.5                6.1 +/-    1.43      12.6 +/-    1.43  0.030 / 0.040
G25     85.1           15.6               10.4 +/-    1.00      25.6 +/-    1.00  0.060 / 0.170
G31     172.6          59.7               12.0 +/-    0.95      13.7 +/-    0.95  0.060 / 0.180
G32     31.1           55.7                6.5 +/-    0.68       7.7 +/-    0.68  0.030 / 0.060